1
Q
what is the activity in relation to the decaying process of radioactive source?
A
the activity of a radioactive source is the rate at which it decays.
2
Q
what is radioactive decay measured in?
A
becquerels.
Bq.
3
Q
what is 1 Bq equivalent to?
A
1 decay per second.
4
Q
what is the count rate?
A
number of decays recorded each second by a detector.
5
Q
what is an example of a detector for radioactive decay?
A
Geiger-Muller tube.
6
Q
what is 1Bq equal to in count-rate?
A
1 count per second.
Physics.
flashcards
Decks in class (82)
# Cards
-
equations that you have to learn.15
-
energy and work done.5
-
gravitational potential energy.5
-
kinetic energy.0
-
energy transfer and power.18
-
current, voltage and resistance.15
-
current: voltage graphs.0
-
series circuits.5
-
parallel circuits.4
-
alternating and direct current. AC & DC.4
-
cables and plugs.35
-
electrical power.0
-
energy transfer in appilances.5
-
the national grid.15
-
static charge.6
-
electric fields.8
-
particle model for the 3 states of matter.4
-
density.2
-
changes of state.4
-
gas laws.0
-
structure of an atom.16
-
mass number, atomic number, isotopes.4
-
development of the model of the atom.15
-
radioactive decay.6
-
nuclear equations.8
-
half lives and the random nature of radioactive decay.8
-
radioactive contamination.6
-
background radiation.2
-
medical uses of radioactivity.5
-
nuclear fission and fusion.20
-
forces and resultant forces.7
-
weight and mass.0
-
LDR's and thermistors.11
-
required practical's.3
-
internal energy and specific heat capacity.5
-
specific latent heat.2
-
particle motion and pressure in gases.13
-
expanding and compressing gases.2
-
work energy and pressure.6
-
atoms, isotopes and ions.8
-
types of radiation.4
-
nuclear equations.13
-
nuclear power.7
-
forces and motion.10
-
resultant forces in 2D.4
-
hook's law theory.8
-
distance time graphs.4
-
velocity time graphs.8
-
equations of motion for uniform acceleration.6
-
newton's second law.7
-
newton's laws of motion.4
-
free fall and terminal velocity.11
-
stopping distance.11
-
breaking distance and kinetic energy.3
-
momentum & conservation of momentum.4
-
impact forces and car safety.4
-
waves.9
-
measuring speed of waves in liquids.6
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measuring speed of waves in a solid.5
-
reflection and refraction required practical.4
-
lenses.12
-
lenses- drawing ray diagrams.8
-
ray diagrams- mirrors and refraction.4
-
sound waves.4
-
ultra sound and x-ray imaging.16
-
waves to explore structure of earth.11
-
electromagnetic spectrum.19
-
uses & risks of electromagnetic waves.9
-
Producing electromagnetic waves9
-
visiable light (seeing colour.)14
-
black body radiation- emission & absorption of inferred radiation.23
-
moments, levers and gears.7
-
pressure in fluids.6
-
magnets and magnetic materials.7
-
electromagnets.4
-
induced potential.3
-
the generator effect.12
-
transformers.5
-
the solar system.9
-
using the motor effect.4
-
lifecycle of a star.16
-
doppler effect and redshift.11
